Maintain zoom level

When viewing the Library, being able to set the zoom level to adjust the size of the thumbnails is a great feature and extremely valuable. However, once the user opens any image and then goes back to the library again, the zoom level is reset back to the default of 70%. (Sometimes 90% - not sure why.)

This is extremely frustrating and tedious.

Would be great if once the user set their preferred zoom level, it was retained unless they choose to change or reset it.